u-boot/arch/arm/include/asm/arch-stv0991/stv0991_gpt.h
Vikas Manocha 9fa32b1237 stv0991: Add basic stv0991 architecture support
stv0991 architecture support added. It contains the support for
following blocks
- Timer
- uart

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
[trini: Add arch/arm/cpu/armv7/Makefile hunk]
Signed-off-by: Tom Rini <trini@ti.com>
2014-12-09 15:16:01 -05:00

43 lines
895 B
C

/*
* (C) Copyright 2014
* Vikas Manocha, ST Micoelectronics, vikas.manocha@st.com.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#ifndef _STV0991_GPT_H
#define _STV0991_GPT_H
#include <asm/arch-stv0991/hardware.h>
struct gpt_regs {
u32 cr1;
u32 cr2;
u32 reserved_1;
u32 dier; /* dma_int_en */
u32 sr; /* status reg */
u32 egr; /* event gen */
u32 reserved_2[3]; /* offset 0x18--0x20*/
u32 cnt;
u32 psc;
u32 arr;
};
struct gpt_regs *const gpt1_regs_ptr =
(struct gpt_regs *) GPTIMER1_BASE_ADDR;
/* Timer control1 register */
#define GPT_CR1_CEN 0x0001
#define GPT_MODE_AUTO_RELOAD (1 << 7)
/* Timer prescalar reg */
#define GPT_PRESCALER_128 0x128
/* Auto reload register for free running config */
#define GPT_FREE_RUNNING 0xFFFF
/* Timer, HZ specific defines */
#define CONFIG_STV0991_HZ 1000
#define CONFIG_STV0991_HZ_CLOCK (27*1000*1000)/GPT_PRESCALER_128
#endif